55844843 has 2 divisors, whose sum is σ = 55844844. Its totient is φ = 55844842.

The previous prime is 55844839. The next prime is 55844861. The reversal of 55844843 is 34844855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55844843 - 2² = 55844839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55844843.

It is not a weakly prime, because it can be changed into another prime (55844543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27922421 + 27922422.

It is an arithmetic number, because the mean of its divisors is an integer number (27922422).

Almost surely, 2^55844843 is an apocalyptic number.

55844843 is a deficient number, since it is larger than the sum of its proper divisors (1).

55844843 is an equidigital number, since it uses as much as digits as its factorization.

55844843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 307200, while the sum is 41.

The square root of 55844843 is about 7472.9407196899. The cubic root of 55844843 is about 382.2325708387.

The spelling of 55844843 in words is "fifty-five million, eight hundred forty-four thousand, eight hundred forty-three".